The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 06, 2004
Filed:
Mar. 16, 2000
Applicant:
Inventors:
Takashi Kamei, Kyoto, JP;
Kiyoshi Imai, Kyoto, JP;
Assignee:
Omron Corporation, Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/14 ;
U.S. Cl.
CPC ...
G09G 3/14 ;
Abstract
A photoelectric sensor has a level display unit ( ). The level display unit ( ) is constituted by arranging a plurality of 7-segment indicators ( ). The 7-segment indicators ( ) are partially constituted of red LED segments ( ) and partially constituted of red/green two-color LED segments ( ). For a digital display, all of the segments are illuminated in red to display numerals. For a graph display, the red/green two-color LED segments are illuminated in green to present a bar graph.